Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 251)

Rockwell Automation Publication 750-RM002B-EN-P - September 2013 251
Motor Control Chapter 4
Speed Reference The speed reference can come from a variety of sources. Some can be selected
through digital inputs or via bit manipulation of the Network Logic Command
Word:
• HIM (local or remote)
• Analog Input
• Preset Speed Parameters
• Jog Speed Parameters
• Auxiliary Velocity Feedback
• Network Communication
• Process PID Loop
• MOP Reference
• DeviceLogix software
Figure 28 - PowerFlex 753 Speed Reference Selection Overview
Refer to the PowerFlex 750-Series Programming Manual, publication 750-
PM001 , Appendix A for more details on the PowerFlex 753 Control Block
Diagrams.
+
Spd Ref A
Trim Ref A
Trim % Ref A
Ref A
Auto
+
Spd Ref B
Trim Ref B
Trim % Ref B
Ref B
Auto
+
ENet Spd Ref
DPI Ports 1-6 Manual
Spd Ref
Command
Limit
Selected Spd Ref Skip
Bands
Limited
Spd Ref
Direction
Mode
Vel Ref
Filter
x
Speed
Comp
Pos Reg
Output
Filter
Speed Ref
Scale
From
Position
Regulator
Limit
Velocity Reg
Ref
Motor Spd Ref
From
PI Regulator
(Trim Mode)
From
PI Regulator
(Exclusive Mode)
Jogging/
Oil Pump/
Autotune/
Homing/
Overrides
VF or SV
Droop
From
Slip Comp
Frequency
Ref
Limit
From
Velocity Trim
Regulator
Max Speed +
Overspeed Limit
From
PI Regulator
(Trim Mode)
Flux
Vector
Limit
Max Speed
Max Speeds
Speed Reference Selection
Speed Reference Control
Ramped
Vel Ref
Limit
Switch
Control
Speed Ref
Stop
Vector Ramp S-Curve
Linear
Ramp &
S Curve
V/F Ramp S-Curve
Linear
Ramp &
S Curve
Vector Speed Control
V/F Speed Control
Rate
Select
Speed
Status
Speed Feedback
Vector Ramp Status
F/F Ramp Status
Status
Ramped
Speed Ref
Presets 3-7 Auto
From
Pt-Pt Profile
Generator
Fiber
App.